.introduce_header {
    width: 100%;
    height: 360px;
    background-image: url("/assets/header/jtgk.webp");
    margin-top: 7vh;
    background-size: cover; 
}

.introduce_area {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    align-items: flex-start;
}